#include<stdio.h>
int main()
{
    int a=12;
    float b=3.1415;
    char c='A';
    printf("%d\n",a);
    printf("o%o\n",a);
    printf("0x%x\n",a);
    printf("%3.2f\n",b);
    printf("%c\n",c);
    getchar();
    return 0;
}
